J. T. Eaton LCX9000 user manual Input Chokes, 16 Input Choke Dimensioning, 6-Pulse Supply

LCX9000 Liquid-Cooled Drives User Manual

January 2007

Input Chokes

The input choke carries out several functions in the Cutler-Hammer liquid-cooled drive. Connection of the input choke is necessary except if you have a component in your system that performs the same tasks (e.g. a transformer). The input choke is needed as an essential component for motor control, to protect the input and DC-link components against abrupt changes of current and voltage as well as to function as a protection against harmonics.

The input chokes are included in the standard delivery of Cutler-Hammer liquid-cooled drives. However, you can also order your drive without the choke.

The Cutler-Hammer chokes listed in Table 2-16are meant for supply voltages of 400 – 500V and 525 – 690V.

Table 2-16: Input Choke Dimensioning, 6-Pulse Supply

Converter		Converter				Nominal
Amperages		Amperages			Thermal	Inductance	Calculated
(400 – 500V AC)		(690V AC)		Choke Type	Current (A)	(µH) A/B	Loss (W)
16	– 22	12	– 23	CHK0023N6A0	23	1900	145
31	– 38	31	– 38	CHK0038N6A0	38	1100	170
45	– 61	46	– 62	CHK0062N6A0	62	700	210
72	– 87	72	– 87	CHK0087N6A0	87	480	250
105	– 140	105	– 140	CHK0145N6A0	145	290	380
168	– 261	170	– 261	CHK0261N6A0	261	139/187	460
300	– 385	325	– 385	CHK0400N6A0	400	90/126	610
		820	– 1180
		1850 – 2340
460	– 520	416	– 502	CHK0520N6A0	520	65/95	810
1370	(CH74)	1300 – 1500
		2700 – 3100
590	– 650	590	– 650	CHK0650N6A0	650	51/71	890
1640		1700 – 1900
730		750		CHK0750N6A0	750	45/61	970
2060
820		—		CHK0820N6A0	820	39/53	1020
2300
920	– 1030	—		CHK1030N6A0	1030	30/41	1170
1150		—		CHK1150N6A0	1150	26/36	1420
2470	– 2950	—		CHK0520N6A0	520	65/95	810
3710		—		CHK0650N6A0	650	51/71	890
4140		—		CHK0750N6A0	750	45/61	970

Inductances for different supply voltages: A = 400 – 480V AC, B = 500 – 690V AC. See Table 2-17.

Converter amperages written in bold italic require three (3) chokes of the designated kind per unit with 6-pulse supply.

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